- BrandJCB
- Article336/B9042
- Machine systemHydraulic system
- Part typeValve spool
- Machine brandJCB
- Manufacturing typeOriginal
- All the features
Priority valve spool 336/B9042 is a genuine JCB part for the JCB machines.
The spool is a precision-machined steel rod in a valve section that decides which side of the cylinder gets the oil; as the control lever moves, the spool slides and opens or closes the passages. The lands and notches on it set the speed and smoothness of the movement, so the spools of different sections in one block differ and are identified by letter. A scored or worn spool causes internal leakage, creep and sticking. Leaking spool seals show as oil around the control levers. The spool is supplied new, and its surface must be protected in transit, since even a small scratch can cause leakage. The spool is made of steel.
Specifications
| Part number | 336/B9042 |
| Manufacturer | JCB |
| Production type | Original |
| Part type | Valve spool |
| System / group | Hydraulic system |
| Machine make | JCB |
Compatibility
The spool belongs to the steering circuit priority valve, which sends pump flow to the steering first. The catalogue also has the aftermarket version of this part. Other parts are in Hydraulic valves.
Fitting
Oil the spool with clean hydraulic oil and slide it into the bore without force, turning it slightly; if it binds, recheck the bore and spool. After assembly, work the lever in every direction to confirm the spool moves freely.
Specifications
- Machine systemHydraulic system
- Part typeValve spool
- Machine brandJCB
- Manufacturing typeOriginal
No questions about this product.
